Attachment for register-grates for the purpose of regulating the uptake-draft.



4 H. c. ABBOTT. v I ATTACHMENT FOR'REGISTER GRATESIOR THE PURPOSE OF BEGULATING THE UPTAKE DRAFT.

APPLIOATIOKI'ILED DEC. 27, 1909.

1,009,619 I I Patented Nov.21,191 1.

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Hs'mzv names ABBOTT.

Aitofn ey COLUMIUA PLANOGRAPH 00.. WASHINGTON. n.

UNITED srari s PATENT OFFICE.

HENRY ABB QTQfOF 'LAUNCESTON, TASMANIA, AUSTRALIA.

ATTACHMENT FOR REGISTER-GRATES"FOR THE PURPOSE OF REGULATING THE UPTAKE-DRAFT.

Specification of Letters Patent.

Application filed December 27, 1909.

Patented Nov. 21, 1911.

Serial No. 535,008.

To all whom it may concern Be it known that I, HENRY GHARLES AB- BOTT, a subject of the King of Great Britain, residing at Patterson street, Launceston, Tasmania, Australia, manufacturer, have invented a new and useful Attachment to Register-Grates for the Purpose of Regulating the Uptake-Draft; and I do hereby declare the following to be a full, clear, and exact description of the same.

This invention relates to a simply constructed and easily attached contrivance to register grates for the urpose of enlarging or restricting the draft aperture from the grate to the chimney.

The contrivance consists of a light metal framework preferably rectangular in shape and provided in its forward part with in verted notches by means of which the frame may engage with-and ride upon the register of the grate. The rear of the frame is weighted for the purpose of canting a notched bar, attached to and forwardly proj ecting therefrom, upward against the edge of the grate curtain.

In the accompanying drawing :Figure 1 shows an ordinary register grate with the invention attached. Fig. 2 is a plan of the contrivance. Fig. 3 is a section of same on line AB Fig. 2. Fig. 4 shows in side sectional elevation an ordinary register grate, while, Fig. 5 is a. similar view of a grate in which the register plate depends from the front of the grate.

The frame 1 is preferably made rectangular and wide enough to ride upon the curved register 2 of the grate 3 by means of depressions or notches 4 formed in the forward end of 1. If the frame is made of wire these depressions may be formed by bending an inverted U into the frame on each side. Attached to and project-ing forwardly from 1 is a notched bar 5, which engages the curtain 6 of the grate. If the bar be of stout wire it may be bent or folded to provide the notches for the purpose explained. A suitable weight 9 is fitted upon the back part of the frame which operates to cant the bar 5 upward, thereby insuring that it will be always in engagement with the cur tain.

When it is desired to alter the position of the register 2 of the outer end of the bar '5 is gripped and slightly depressed to disen-- gage it from the curtain, when the register may be pushed backward or pulled forward according as required to open or close the the curtain 6 and is adjustable along an arc the radius of which is equal to the distance between the pivot of the member 7 and its lower edge. In this case the frame 1 will rest on the rigid back part of the grate, while by means of the knob 8 on register 7 the latter may be adjusted to position and left in engagement with bar 5. Thus, by means of the invention the loosely hanging register 7 may be adjusted and retained without the necessity for any parts other than those that have been described.

I claim 1. An attachment of the kind indicated and comprising a frame having a weight connected therewith and adapted to ride upon the register of a grate, the attachment having a plate or bar provided with notches for engagement by a grate-curtain.

2. An attachment of the kind indicated and having notches to ride upon one part of a grate fixture and a succession of notches any of which may be brought into engagement with another part of the grate fixture,

said attachment provided with a weight to spaced side members each having a corre- In testimony whereof I have signed my spondingly located downwardly opening name to this specification in the presence of notch, a bar extending from one end of said the two subscribing witnesses.

frame in substantial aiinement therewith HENRY CHARLES ABBOTT.

and having upwardly opening notches, and Witnesses: a weight on the end of said frame opposite P. M. NEWTON, to said bar.

A. HARNETT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

